[1] : The Collaborative International Dictionary of English v.0.48

immaculate \immac"ulate\, a. l. immaculatus; pref. im- not +
   maculatus, p. p. of maculare to spot, stane, fr. macula spot.
   see mail armor.
   without stain or blemish; spotless; undefiled; clear; pure.
   1913 webster

         were but my soul as pure
         from other guilt as that, heaven did not hold
         one more immaculate.                     --denham.
   1913 webster

         thou sheer, immaculate and silver fountain. --shak.
   1913 webster

   immaculate conception r. c. ch., the doctrine that the
      virgin mary was conceived without original sin. --
      immac"ulately, adv. -- immac"ulateness, n.
      1913 webster
see also:
mail immaculate conception immac"ulately immac"ulateness 

[2] : WordNet (r) 2.0

immaculately
     adv : in an immaculate manner; "gone was the casually dressed
           canadian she had thought a backwoodsman--this man was
           immaculately tailored"

[3] : Moby Thesaurus II by Grady Ward, 1.0

41 moby thesaurus words for "immaculately":
   absolutely, blamelessly, clean, cleanly, completely,
   conscientiously, decently, entirely, erectly, fastidiously,
   faultlessly, flawlessly, fully, high-mindedly, honestly, honorably,
   ideally, impeccably, infallibly, irreproachably, just right,
   meticulously, morally, nobly, perfectly, punctiliously, purely,
   reputably, righteously, scrupulously, spotlessly, stainlessly,
   thoroughly, totally, unimpeachably, unspottedly, uprightly,
   upstandingly, virtuously, wholly, worthily

Immaculately >> I Words
Immaculately, definition of term: Immaculately
immaculately_pag1.html